<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import * as echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import { debounce } from '@/utils/debounce'
import userInfoApi from '@/api/userInfo/userInfo'

export default {
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.initChart()
    this.initData()
    this.__resizeHandler = debounce(() => {
      if (this.chart) {
        this.chart.resize()
      }
    }, 100)
    window.addEventListener('resize', this.__resizeHandler)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    window.removeEventListener('resize', this.__resizeHandler)
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')

      this.chart.setOption({
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        legend: {
          left: 'center',
          bottom: '10',
          data: ['Industries', 'Technology', 'Forex', 'Gold', 'Forecasts']
        },
        calculable: true,
        series: [
          {
            name: 'WEEKLY WRITE ARTICLES',
            type: 'pie',
            roseType: 'radius',
            radius: [20, 100], // 20中心小圆尺寸，100外围大圆尺寸
            center: ['50%', '38%'],
            data: [

            ],
            animationEasing: 'cubicInOut',
            animationDuration: 1000
          }
        ]
      })
    },
    // { value: 320, name: 'Industries' },
    // { value: 240, name: 'Technology' },
    // { value: 149, name: 'Forex' },
    // { value: 100, name: 'Gold' },
    // { value: 59, name: 'Forecasts' }

    // 动态获取饼图数据
    initData() {
      const getData = []
      userInfoApi.getPieData().then((response) => {
        for (let i = 0; i < response.data.result.length; i++) {
          const obj = {}
          obj.name = response.data.result[i].name
          obj.value = response.data.result[i].value
          // console.log(obj)
          getData[i] = obj
        }
        console.log(getData)
        this.chart.setOption({
          series: [{
            data: getData
          }]
        })
      })
    }
  }
}
</script>
